Invention Grant
US08506420B2 Golf club head with grooves 有权
高尔夫球杆头与槽

Golf club head with grooves
Abstract:
The present invention discloses a golf club head having a plurality of grooves. On the face of the golf club head is a first and second plurality of grooves. The second set of plurality of grooves is smaller in width and depth than those of the first set of plurality of grooves. Each groove of the second set of grooves is positioned at an angle ranging from 15 degrees to 25 degrees relative to each groove of the first set of grooves.
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